基于等体积质量的重水浓度测量方法研究  

Study on the Measurement Method of Heavy Water Concentration Based on Equal Volume Mass

作　　者：姚勇[1] 文明[1] 李佩龙[1] 胡俊[1] YAO Yong;WEN Ming;LI Peilong;HU Jun

机构地区：[1]中国工程物理研究院材料研究所

出　　处：《计量与测试技术》2023年第1期4-6,9,共4页Metrology & Measurement Technique

基　　金：四川省科技计划资助(项目编号:2019YFH0182)。

摘　　要：重水可作为重水堆的慢化剂、科研示踪剂及核磁共振的溶剂。由于科研生产过程涉及重水和轻水两组分混合形成的稀释重水,因此需要对混合液中的重水浓度进行检测。本文采用超细加长不锈钢取样管,建立了重水等体积质量测量方法和等体积质量与重水浓度的转换关系式,并验证了温度对浓度测量结果的影响。实验证明,基于等体积质量的重水浓度测试方法样品用量少、测试速度快、操作方便、结果可靠。Heavy water can be used as moderator of heavy water reactor,tracer of scientific research and solvent of nuclear magnetic resonance.Since the process of scientific research and production involves dilution of heavy water formed by mixing of heavy water and light water,it is necessary to detect the concentration of heavy water in the mixed solution.In this paper,the measuring method of the equal volume mass for heavy water was developed by using the ultra-fine extended stainless steel sampling tubeand the conversion relation between the equal volume mass and the concentration of heavy water was established.The influence of temperature on the concentration measurement results was also verified.The experiment shows that the heavy water concentration test method based on equal volume mass has the advantages such as small sample amount,fast test speed,convenient operation and reliable measurement results.

关 键 词：稀释重水 重水浓度 等体积质量 

分 类 号：TL353[核科学技术—核技术及应用]